Across
- 7. A phenomenon in which the shadow of the moon falls on the earth's surface.
- 9. This planet is the largest planet in our solar system.
- 10. Another name for northern lights.
- 12. A huge collection of stars, planets, gas, and dust held together by gravity.
- 14. 9.5 x 10^12km is the distance that light travels per year.
Down
- 1. the stage for high-mass stars where the entire outer portion of the star explodes.
- 2. A piece of rock that is moving through space
- 3. This planet has a darker blue colour made up of ice particles.
- 4. An object composed of rocky material such as ice and gas
- 5. This planet is the smallest planet in our solar system
- 6. The stage for low-mass stars where they have lost significant mass and can no longer produce energy of their own.
- 8. A group of planets that circle one or more stars.
- 11. The stage for intermediate-mass stars where their core is contracting, the temperature is increasing and the outer layers begin to expand.
- 13. A theory that explains how the universe began.